JP2007039007A - Mounting structure and mounting method for resin vehicle panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure and a mounting method for a resin vehicle panel capable of preventing fall of a member of a nut or the like for mounting the resin vehicle panel on a car body, avoiding peel-off of a coating film from the surface of the nut or the like, and absorbing large thermal expansion and contraction of the resin vehicle panel during a coating work or the like. <P>SOLUTION: A car body member thread part 21 having one of a female screw or a male screw is provided on the car body member 6. A slot 22 is formed along a direction of allowance of thermal deformation of a resin panel 2 at a part corresponding to the car body member thread part 21 in the resin panel 2. A fastener 23 is used, including: a threaded stem 23a; a large diameter part 23b provided to one end of the threaded stem 23a and insertable in the slot 22; and a fastener thread part 23c provided at an end surface of the large diameter part 23b opposite to the threaded stem 23a and screw-engageable with the car body member thread part 21. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mounting structure and mounting method for a resin panel member to a vehicle body member, and belongs to the technical field of the vehicle body structure.

  In recent years, for the purpose of reducing the weight of the vehicle, for example, a resin panel member may be used instead of a metal panel member as a panel member constituting the outer surface of the vehicle such as a fender panel. The following problems may occur.

  That is, the painting on the panel member may be performed together with the other panel member in a state of being attached to the vehicle body member (usually made of metal) in order to prevent a difference in color from the other panel member. However, since the coefficient of thermal expansion differs greatly between the vehicle body member and the resin panel member, this difference in coefficient of thermal expansion (resin panel member at the time of operation such as baking is extremely high temperature (for example, hundreds of degrees C). The thermal expansion coefficient of the resin panel member is larger than that of the vehicle body member, or is greatly contracted by subsequent cooling. As a result, the resin panel member may be bent and deformed.

  For example, Patent Document 1 discloses a structure capable of absorbing a difference in coefficient of thermal expansion between a metal vehicle body member and a resin panel member. In this structure, a metal vehicle body member and a resin panel member are fastened with bolts and nuts. The bolt insertion hole of the metal vehicle body member is a long hole, and the metal vehicle body member and the resin panel member are According to this, when the resin panel member expands and contracts more than the metal vehicle body member due to a temperature change, the resin panel member and the metal vehicle body member are relative to each other. As a result, this expansion and contraction are allowed.

JP 2001-206248 A

  However, the structure described in Patent Document 1 is presumed to correspond to minute expansion and contraction in the natural temperature range from the description, and large thermal expansion due to a high temperature such as during coating and subsequent contraction due to cooling. It is thought that it cannot respond to.

  In addition, in the thing of patent document 1, as a method for responding to the large expansion and contraction at the time of painting, until the completion of the painting operation, the bolts and nuts are temporarily tightened so that the large expansion and contraction can be handled. In addition, it is conceivable that the main fastening is performed after the completion of painting. In this case, the nuts and bolts may fall off due to vibration or the like during the movement or operation of these members. Also, since the painting work is performed with the bolts and nuts temporarily tightened, a coating film is formed over the surfaces of these bolts and nuts, and after the completion of painting, the bolts and nuts are finally fastened. At the time of fastening, the bolts and nuts may rotate, and the coating film on the surface may be peeled off, which may impair the appearance of the workpiece.

  Therefore, the present invention prevents the removal of a member such as a nut for attaching the resin panel member to the vehicle body member, and avoids the peeling of the coating film from the surface of the member such as the nut, while at the time of painting work, etc. It is an object of the present invention to provide a mounting structure and mounting method for a resin panel member for a vehicle that can absorb large thermal expansion and contraction of the resin panel member.

  In order to solve the above-described problems, the present invention is configured as follows.

  First, the invention according to claim 1 of the present application is a structure for mounting a resin panel member to a vehicle body member, and the vehicle body member is provided with a vehicle body member side screw portion in which one of a female screw and a male screw is formed. And an elongated hole is formed in a portion of the panel member corresponding to the vehicle body member side screw portion along a direction allowing thermal deformation of the panel member, and the screw shaft portion, A large-diameter portion that is provided at one end of the screw shaft portion and can be inserted into the elongated hole; and a screw portion that is provided on an end surface of the large-diameter portion on the side opposite to the screw shaft and can be screwed to the vehicle body member-side screw portion; The fastening member which has is used, It is characterized by the above-mentioned.

  The invention according to claim 2 is the mounting structure for a resin panel member for a vehicle according to claim 1, wherein the screw shaft portion of the fastening member has a diameter larger than that of the large diameter portion. 2 is provided with a large diameter portion.

  The invention according to claim 3 is the mounting structure for a resin panel member for a vehicle according to claim 2, wherein the screw portion of the fastening member is pressed until the large-diameter portion is pressed against the vehicle body member. A feature is that a gap is formed between the second large-diameter portion and the resin panel member when screwed into the vehicle body member-side screw portion.

  According to a fourth aspect of the present invention, there is provided the resin panel member mounting structure for a vehicle according to the second or third aspect, wherein the large-diameter portion of the fastening member is provided at the periphery of the elongated hole. And a long hole into which the second large-diameter portion can be inserted, and the thickness of the portion where the long hole into which the large-diameter portion can be inserted is formed is the long hole of the resin panel member. A frame-like spacer member, which is set to be substantially the same as the thickness of the portion and has a higher compressive creep strength than the resin panel member, is fitted.

  The invention according to claim 5 is the mounting structure for a resin panel member for a vehicle according to any one of claims 1 to 4, wherein the resin panel member has a heat shrinkage of a predetermined amount or more. A heat shrinkage restricting portion for restriction is provided.

  The invention according to claim 6 is the mounting structure of the resin panel member for vehicle according to claim 5, wherein the heat shrinkage restricting portion is screwed into the vehicle body member side screw portion. And one end of the long hole of the resin panel member.

  On the other hand, the invention according to claim 7 is a method of attaching a fat and oil panel member to a vehicle body member, and a vehicle body member side screw portion in which one of a female screw or a male screw is formed in the vehicle body member in advance. In addition, a long hole is previously formed in a portion of the resin panel member corresponding to the vehicle body member side screw portion along a direction allowing thermal deformation of the panel member, and the screw shaft portion and the screw A large-diameter portion that is provided at one end of the shaft portion and can be inserted into the elongated hole; and a screw portion that is provided on the end surface of the large-diameter portion on the side opposite to the screw shaft and that can be screwed to the vehicle body member-side screw portion. The fastening member having the large-diameter portion is prepared by aligning the position of the vehicle body member side screw portion and the elongated hole and overlapping the vehicle body member and the resin panel member. Until the body member is pressed into contact with the vehicle body member, The resin panel member is subjected to a predetermined operation in which heat is applied, and then the nut member for fastening is passed through the screw shaft portion of the fastening member, and the vehicle body member and the resin panel member are fixed by the nut member. It is characterized by doing.

  The invention according to claim 8 is the mounting method of the resin panel member for a vehicle according to claim 7, wherein the screw shaft portion of the fastening member has a diameter larger than that of the large diameter portion. When the screw portion of the fastening member is screwed into the vehicle body member side screw portion until the large diameter portion is pressed against the vehicle body member, the second large diameter portion and the resin are provided. A gap is formed between the panel member and the panel member.

  The invention according to claim 9 is the mounting method of the resin panel member for a vehicle according to claim 7 or claim 8, wherein the predetermined operation for applying heat to the resin panel member is as follows: It is a coating film drying operation after painting.

  Next, the effect of the present invention will be described.

  First, according to the first aspect of the present invention, the screw portion of the fastening member is connected to the vehicle body member side screw portion through the long hole from the resin panel member side until the large diameter portion of the fastening member is pressed against the vehicle body member. By screwing, the fastening member is firmly attached to the body member side.

  In this state, the fastening nut member is not yet attached to the fastening member. In other words, since the resin panel member and the vehicle body member are not yet fastened, if the resin panel member is subjected to a very high temperature, such as a painting operation, the resin panel member is heated during the operation. When expansion or contraction occurs, the resin panel member moves relative to the vehicle body member while the fastening member is guided by the large diameter portion in the long hole. That is, expansion and contraction of the resin panel member during the painting operation are allowed, and as a result, deformation and the like of the resin panel member are prevented.

  Note that the expansion amount and the shrinkage amount of the resin may not be equal due to the thermal history, and if the resin panel member and the vehicle body member are completely fastened in advance, the difference between the expansion amount and the shrinkage amount is caused. However, according to the present invention, after the completion of the painting operation, the resin panel member is finally fixed to the vehicle body member, thereby eliminating these fears. can do.

  And if a fastening nut is fastened after completion | finish of such a high temperature operation | work, a resin-made panel member will be fixed to a vehicle body member.

  Moreover, according to the first aspect of the present invention, since the nut member for fastening is passed through the screw shaft portion of the fastening member for the first time after the work is painted and dried, the vehicle body member and the resin panel member are fixed. It is possible to avoid peeling of the coating film at the time of final fastening and to prevent the appearance of the workpiece from being deteriorated.

  Furthermore, since the long hole is formed along the direction allowing the thermal deformation of the resin panel member, the thermal deformation of the panel member before the final fastening can be allowed and guided with a simple structure.

  Next, according to the invention described in claim 2, provision of the second large diameter portion can improve the temporary holding property of the resin panel member with respect to the vehicle body member with a simple structure.

  Next, according to the invention described in claim 3, when the fastening member is strongly screwed into the vehicle body member side screw portion, a gap is formed between the second large diameter portion and the resin panel member. As a result, the effects of claims 1 and 2 can be obtained while preventing the fastening member from falling off from the work before the vehicle body member and the resin panel member are finally fastened by the fastening nut member.

  Next, according to the invention described in claim 4, since the frame-shaped spacer member is fitted to the peripheral edge portion of the long hole of the resin panel member, it is excessively large in the attached portion of the resin panel member with a simple structure. It is possible to suppress the action of an appropriate mounting axial force, and it is possible to avoid damage to the panel member.

  Next, according to the invention described in claim 5, since the thermal contraction of the resin panel member by a predetermined amount or more is restricted, it is possible to prevent the panel member from being largely displaced with respect to the vehicle body member. Assembling accuracy can be improved by suppressing generation of gaps and the like.

  In this case, according to the invention described in claim 6, the position of the resin panel member is determined by the contact between the fastening member screwed into the vehicle body member-side screw portion and one end portion of the long hole of the resin panel member. Since the heat shrinkage more than the fixed amount is regulated, the effect of claim 5 can be obtained with a simple structure while effectively using existing members.

  Furthermore, according to the invention described in claim 7, when the resin panel member is attached to the vehicle body member, the same effect as described in claim 1 can be obtained.

  Further, according to the invention described in claim 8, when the resin panel member is attached to the vehicle body member, the same effect as described in the claims 2 and 3 can be obtained.

  According to the ninth aspect of the invention, since the coating film drying operation after coating is performed as the predetermined operation in which heat is applied to the resin panel member, the entire panel member is heated for a long time. Even when the panel member is greatly deformed by heat, as described in claim 1, it is possible to allow and guide the heat deformation of the panel member before the final fastening with a simple structure. In addition, it is possible to avoid peeling of the coating film during the final fastening by the fastening nut member, and to prevent the appearance of the workpiece from being impaired.

  Hereinafter, the best mode for carrying out the present invention will be described.

  FIG. 1 is an overall perspective view of a vehicle 1 according to the present embodiment. The outer surface of the vehicle 1 is formed by various panel members such as left and right fender panels 2 and 2, a hood panel 3, left and right door panels 4 and 4 (only one shown), and a roof panel 5. In the present embodiment, the fender panel 2 is made of resin in order to reduce the weight of the vehicle 1.

  FIG. 2 is an enlarged perspective view showing the mounting relationship between the fender panel 2 of the vehicle 1 and the apron frame 6 which is a metal body body member. A flange portion 2a extending in the longitudinal direction of the vehicle body is provided on the inner upper portion of the fender panel 2, and the flange portion 2a and the upper surface portion of the apron frame 6 are vertically overlapped. The fender panel 2 is attached to the apron frame 6 at three locations including the rearmost fixing portion 10, the front slide portion 20, and the foremost complete fastening portion 30.

  In this case, the fender panel 2 is allowed to be thermally deformed (thermal expansion / shrinkage) in the longitudinal direction of the vehicle body, but is restricted from thermal deformation (thermal expansion / thermal shrinkage) in the vehicle body width direction and the vertical direction. The reason for this is to maintain a design gap between the fender panel 2 and the hood panel 3 and avoid contact between the fender panel 2 and the hood panel 3. Thereby, the aesthetic appearance of the vehicle 1 which is an important factor for determining the commercial value of the vehicle 1 is maintained. On the other hand, for example, if thermal expansion in the vehicle body width direction of the fender panel 2 is allowed, the upper edge portion 2x of the fender panel 2 pushes the side edge portion 3x of the hood panel 3 into the vehicle body, or the upper and lower sides of the fender panel 2 If the thermal expansion in the direction is allowed, the upper edge 2x of the fender panel 2 may push up the side edge 3x of the hood panel 3 and the outer shape of the vehicle 1 may be deformed. From this point of view, the rear fixing portion 10 is an attachment portion serving as a reference position for thermal deformation when the fender panel 2 is attached to the apron frame 6, and the front slide portion 20 is a vehicle body with respect to the apron frame 6 of the fender panel 2. It is a mounting portion that allows relative movement in the front-rear direction.

  Moreover, as shown in FIG. 2, you may provide a slide fixing | fixed part in the bumper attachment part 2y. Since the front part of the fender panel 2 is supported from below by the bumper mounting part 2y, it is also effective for suppressing thermal sagging of the fender panel 2 due to heat of coating drying.

  FIG. 3 is an enlarged cross-sectional view before the slide portion 20 is attached. The left-right direction on the drawing is the left-right direction of the vehicle body. An apron frame 6 that is a vehicle body member is provided with a weld nut 21 in which a female screw is formed. A guide boss 21 a is formed on the nut 21 and is positioned by being fitted into the mounting hole 21 b of the apron frame 6. A slot 22 is formed in a portion corresponding to the weld nut 21 (the body member side threaded portion) in the fender panel 2 that is a panel member, along a direction in which the panel member 2 is allowed to be thermally deformed (the vehicle longitudinal direction). Has been. A screw shaft portion 23a; a large-diameter portion 23b provided at one end of the screw shaft portion 23a and insertable into the elongated hole 22; and a counter-screw shaft portion 23a side end surface of the large-diameter portion 23b. A fastening member 23 having a threaded portion 23c that can be screwed to the vehicle body member-side threaded portion 21 is used. In the present embodiment, the long hole 22 has a rectangular shape. A frame-like spacer 24 is fitted in the long hole 22. The spacer 24 is made of, for example, a metal, an inorganic compound (ceramics, or the like), FRP (fiber reinforced plastic: preferably thermosetting resin), and has a compressive creep strength higher than that of the fender panel 2. That is, the spacer 24 is less likely to undergo plastic deformation when subjected to a compressive force than the fender panel 2.

  On the other hand, the screw shaft portion 23a of the fastening member 23 has a second large-diameter portion 23d having a larger diameter than the large-diameter portion 23b and capable of coming into contact with the surface around the long hole 22 of the resin panel member 2. Is provided. The lower corner portion of the large-diameter portion 23b is an inverted frustoconical tapered portion 23e. A fastening nut member 25 is also prepared. The nut member 25 includes a nut main body 25a and a flange portion 25b. The hook portion 25b is pivotable about the axis with respect to the nut body 25a by being locked by the caulking portion 25c. The flange portion 25b contacts the upper end portion of the spacer member 24 when the fastening nut member 25 is fastened to the screw shaft portion 23a.

  As shown in FIG. 4, the spacer member 24 has a lower long hole 24a and an upper long hole 24b into which the large diameter portion 23b and the second large diameter portion 23d of the fastening member 23 can be inserted, respectively. The thickness α of the lower portion where the lower long hole 24a into which the diameter portion 23d can be inserted is formed is set to be substantially the same as the thickness β of the portion where the long hole 22 of the resin panel member 2 is formed. . The upper edge portion of the lower long hole 24a is chamfered to form a slope portion 24c. The inclined portion 24c and the taper portion 23e of the fastening member 23 provide a guide structure for guiding the screw portion 23c to the weld nut 21 when the fastening member 23 is inserted into the long hole 24a of the spacer member 24. Is provided. The spacer member 24 has a plurality of sharp protrusions 24d. As shown in FIG. 9, the sharp protrusions 24d... 24d bite into the apron frame 6 when the spacer member 24 is pressed against the fender panel 2 or the apron frame 6 by the flange 25b of the fastening nut member 25. Accordingly, the spacer member 24 or the fender panel 2 is prevented from being twisted and deformed by the shaft torque when the fastening nut member 25 is tightened.

  Next, a method for attaching the resin fender panel 2 to the metal apron frame 6 in the slide portion 20 will be described with reference to the state diagrams shown in FIGS.

  First, in the vehicle body assembly factory, as shown in FIG. 5, a frame-like spacer member 24 is inserted into the elongated hole 22 of the fender panel 2. Further, a weld nut 21 is joined to the upper surface portion of the apron frame 6. Then, as shown in FIG. 6, for example, a hexagonal pin wrench 29 is used in a state in which the vehicle body member 6 and the resin panel member 2 are overlapped with each other by aligning the positions of the vehicle body member side screw portion 21 and the elongated hole 22. Then, the screw portion 23c of the fastening member 23 is screwed into the vehicle body member-side screw portion 21. As shown in FIG. 7, the screwing is performed until the large-diameter portion 23b is pressed into contact with the vehicle body member 6 (weld nut 21 integrated with the vehicle body member 6 in the illustrated example). Here, as shown in FIG. 7, when the screw portion 23 c of the fastening member 23 is screwed into the vehicle body member side screw portion 21 until the large diameter portion 23 b is pressed against the vehicle body member 6, It is comprised so that a clearance gap may arise between 2 large diameter part 23d and the resin-made panel members 6. FIG. More specifically, in this embodiment, a gap C1 is generated between the second large diameter portion 23d and the spacer member 24, and a gap C2 is generated between the spacer member 24 and the fender panel 2.

  And in this state, the predetermined | prescribed operation | work which heats with respect to the resin-made panel members 2, ie, a workpiece | work, is coated, and the coating-film drying operation | work after the coating is performed. As a result, a coating film P is formed on the surface of the workpiece W as shown in FIG. Thereafter, as shown in FIG. 9, the fastening nut member 25 is passed through the screw shaft portion 23 a of the fastening member 23, and the vehicle body member 6 and the resin panel member 2 are fixed by the nut member 25.

  Thus, according to this embodiment, the screw portion of the fastening member is screwed into the vehicle body member side screw portion through the long hole from the resin panel member side until the large diameter portion of the fastening member is pressed against the vehicle body member. By doing so, the fastening member is firmly attached to the vehicle body member side.

  In this state, the fastening nut member is not yet attached to the fastening member. In other words, since the resin panel member and the vehicle body member are not yet fastened, if the resin panel member is subjected to a very high temperature, such as a painting operation, the resin panel member is heated during the operation. When expansion or contraction occurs, the resin panel member moves relative to the vehicle body member while the fastening member is guided by the large diameter portion in the long hole. That is, expansion and contraction of the resin panel member during the painting operation are allowed, and as a result, deformation and the like of the resin panel member are prevented.

  Note that the expansion amount and the shrinkage amount of the resin may not be equal due to the thermal history, and if the resin panel member and the vehicle body member are completely fastened in advance, the difference between the expansion amount and the shrinkage amount is caused. However, according to the present invention, after the completion of the painting operation, the resin panel member is finally fixed to the vehicle body member, thereby eliminating these fears. can do.

  And if a fastening nut is fastened after completion | finish of such a high temperature operation | work, a resin-made panel member will be fixed to a vehicle body member.

  Moreover, in this embodiment, before the workpiece is painted and dried, the fastening nut member screwed and temporarily fixed to the screw assembly is not used, and the fastening nut member is not used for the first time after the workpiece is painted and dried. Since the vehicle body member and the resin panel member are fixed through the screw shaft portion of the fastening member, it is possible to avoid peeling of the coating film during the final fastening and to prevent the appearance of the work from being impaired. Become.

  Furthermore, since the long hole is formed along the direction allowing the thermal deformation of the resin panel member, the thermal deformation of the panel member before the final fastening can be allowed and guided with a simple structure.

  Next, by providing the second large diameter portion, the temporary holding property of the resin panel member with respect to the vehicle body member can be improved with a simple structure.

  Next, when the fastening member is strongly screwed into the vehicle body member-side threaded portion, a gap is formed between the second large diameter portion and the resin panel member. The effect described above can be obtained while preventing the fastening member from falling off the workpiece at the stage prior to the final fastening of the member and the resin panel member.

  Next, since the frame-shaped spacer member is fitted to the peripheral edge of the long hole of the resin panel member, it is possible to suppress an excessive mounting axial force from acting on the mounted portion of the resin panel member with a simple structure. Damage to the panel member can be avoided.

  And since the coating film drying operation | work after coating is performed as a predetermined | prescribed operation | work which heats with respect to resin-made panel members, high heat acts on the whole panel member over a long time, and a panel member carries out a large heat deformation. Even in such a case, thermal deformation before final fastening of the panel member can be allowed and guided with a simple structure, and peeling of the coating film at the time of final fastening by the fastening nut member can be avoided, It becomes possible to prevent deterioration of the appearance of the workpiece.

  In addition, since the flange portion 25b of the nut member 25 is rotatable, the shaft torque is less likely to act directly on the spacer member 24 during tightening of the nut member 25, and twisting and deformation of the spacer member 24 can be suppressed. . The flange 25b may be separated from the nut member 25.

  As shown in FIG. 10, when the flange portion 24e is provided on the spacer member 24, the pressing by the flange portion 25b of the nut 25 becomes good. Further, as shown in FIG. 11, the spacer member 24 may not be used depending on the situation. In the illustrated example, an upper extension 2b is erected around the long hole 22 of the fender panel 2, and the flange 25b of the nut 25 presses the upper end of the upper extension 2b downward. Here, a rubber or resin washer may be interposed between the flange 25b of the nut 25 and the upper end of the upper extension 2b.

  Next, the attachment method in the complete fastening part 30 is demonstrated, referring the state diagram shown in FIGS.

  First, as shown in FIGS. 12 to 14, the weld nut 31 is joined to the upper surface portion of the apron frame 6 in the vehicle body assembly factory. Then, as shown in FIG. 14, the vehicle body member 6 and the resin panel member 2 are overlapped with each other by aligning the positions of the vehicle body member side screw portion 31 and the round hole 32 of the fender panel 2. And in this state, the predetermined | prescribed operation | work which heats with respect to the resin-made panel members 2, ie, a workpiece | work, is coated, and the coating-film drying operation | work after the coating is performed. As a result, a coating film P is formed on the surface of the workpiece W as shown in FIG. Thereafter, as shown in FIGS. 16 and 17, the spacer member 34 is fitted into the round hole 32, and the vehicle body member 6 and the resin panel member 2 are fixed by the fastening member 33.

  As shown in FIG. 18, the front end portion of the fender panel 2 is a bent portion 2 c, and the heat shrinkage restricting portion that restricts the heat shrinkage of the resin panel member 2 over a predetermined amount by being hooked on the upper surface portion of the vehicle body member 6 40 is configured (see FIG. 2). Before the predetermined operation in which heat is applied to the resin panel member 2, the bent portion 2c of the fender panel 2 is in the initial position (1), but after being thermally expanded and extended to the thermal expansion position (2). By cooling, it contracts to the contracted position (4). However, the bent portion 2c of the fender panel 2 remains at the front end portion of the vehicle body member 6 even after cooling due to the stopper structure by the heat shrinkage restricting portion 40, whereby the screw hole and the vehicle body member of the fender panel 2 in the complete fastening portion 30 are retained. 6 screw holes coincide with each other. As described above, since the thermal contraction of the resin panel member over a predetermined amount is restricted, it is possible to prevent the panel member from being largely displaced with respect to the vehicle body member, and it is possible to prevent the occurrence of an extra gap and the like. The accuracy is improved.

  Further, as shown in FIG. 19, a heat shrinkage restricting portion 40 for restricting heat shrinkage of a predetermined amount or more of the resin panel member is fastened to the fastening member 23 screwed to the vehicle body member side screw portion 21, and the resin panel. You may comprise by contact | abutting with the one end part of the long hole 22 of the member 2. FIG. The above-described effect can be obtained with a simple structure while effectively using existing members.

  Here, as shown in FIG. 20, when the fender panel 2 is placed on the vehicle body member 6 and the weld nut 21 is positioned directly below the elongated hole 22 and the spacer member 24, the fastening member 23 is elongated. It can be easily screwed in via the spacer 22 and the spacer member 24. However, depending on the tuning of the jig or the jig hole, for example, as shown in FIG. 21, the positional relationship between the vehicle body member 6 and the fender panel 2 is out of order in the vehicle body width direction (vertical direction in the drawing), and the fastening member 23 becomes long. In some cases, the weld nut 21 cannot be screwed through the hole 22 and the spacer member 24.

  In such a case, as shown in FIG. 22, when a clip nut 70 that is formed in the vehicle body member 6 with a long relief hole 6 a in the left-right direction (vehicle body width direction) and sandwiches the vehicle body member 6 is used, Since the screw part 70b floats, as shown in FIG. 23, even if the positional relationship between the vehicle body member 6 and the fender panel 2 is out of order in the vehicle body width direction (left and right direction in the drawing), the fastening member 23 is securely attached. It can be screwed into the screw portion 70 b of the clip nut 70 through the long hole 22 and the spacer member 24.

<< Invention to be a reference to the present invention >>
It is to be noted that the problem to be solved by the invention is to absorb the large thermal expansion and contraction of the resin panel member during painting work, etc., while preventing the nut and other members from attaching the resin panel member to the body member. If it is possible to provide a mounting structure and mounting method for a resin resin panel member for a vehicle (that is, it is not a problem to avoid peeling of a coating film from the surface of a member such as a nut), a fastening nut is provided from the beginning. The member 25 may be passed through the screw shaft portion 23a.

  That is, a structure for mounting a resin panel member to a vehicle body member, wherein the vehicle body member is provided with a vehicle body member-side thread portion in which one of a female screw or a male screw is formed, and the vehicle body member in the panel member A portion corresponding to the side screw portion is provided with a long hole, and a screw shaft portion, a large diameter portion provided at one end of the screw shaft portion and insertable into the long hole, and the large diameter And a bolt member having a threaded shaft side threaded portion that can be screwed to the body member side threaded portion, and the threaded shaft portion has a predetermined diameter relative to the large diameter portion. A screw assembly having a fastening nut member that is screwed and temporarily fixed with an interval of is used, and the predetermined interval is set so that the screw shaft side thread portion of the bolt member of the screw assembly has a large diameter of the bolt member. Until the part is pressed against the body member A configuration in which a gap is formed between the nut member and the resin panel member when the threaded panel member is screwed into the vehicle body member side threaded portion through the long hole from the fat panel member side (first configuration) But you can.

  According to the first configuration, the screw shaft side screw portion of the bolt member of the screw assembly is moved from the resin panel member side through the elongated hole until the large diameter portion of the bolt member is pressed against the vehicle body member. Since the screw assembly is screwed together, the screw assembly is firmly attached to the vehicle body member side. In addition, since the fastening nut is screwed and temporarily fixed to the screw shaft portion, even if vibration or the like occurs during movement with the resin panel member attached to the vehicle body member, the screw assembly itself or The fastening nut is prevented from falling off.

  Further, in this state, a gap is generated between the fastening nut member and the resin panel member, that is, the resin panel member and the vehicle body member are not completely fastened. If, for example, a painting operation is performed on the resin panel member that is extremely hot, the resin panel member is screwed into the elongated hole when the resin panel member undergoes thermal expansion or contraction during the operation. Is moved relative to the vehicle body member while being guided by the large-diameter portion. That is, expansion and contraction of the resin panel member during the painting operation are allowed, and as a result, deformation and the like of the resin panel member are prevented.

  Note that the expansion amount and the shrinkage amount of the resin may not be equal due to the thermal history, and if the resin panel member and the vehicle body member are completely fastened in advance, the difference between the expansion amount and the shrinkage amount is caused. However, according to the present invention, after the completion of the painting operation, the resin panel member is finally fixed to the vehicle body member, thereby eliminating these fears. can do.

  And if a fastening nut is fastened after completion | finish of such a high temperature operation | work, a resin-made panel member will be fixed to a vehicle body member.

  Next, in the first configuration, a frame-shaped spacer member having a long hole into which the large-diameter portion of the bolt member can be inserted is fitted to the peripheral portion of the long hole, and the thickness of the spacer member Even in the configuration in which the fastening nut member is not in contact with the spacer member at the time of the press contact, the thickness of the resin panel member is thicker than the portion where the elongated hole is provided (second configuration). Good.

  According to the second configuration, a frame-shaped spacer member having a long hole into which the large-diameter portion of the bolt member can be inserted is fitted to the peripheral portion of the long hole, and the thickness of the spacer member is The fastening nut member is thicker than the resin panel member as long as the fastening nut member is not in contact with the spacer member at the time of the press contact, so that when the fastening nut member is tightened, the nut member As a result, the spacer member is pressed. Therefore, an excessive tightening force is not applied to the resin panel member, and damage or the like of the panel member is prevented.

  Next, in the first configuration or the second configuration, the vehicle body member includes a vehicle body component plate, and a stud bolt that is erected on the vehicle body component plate and configures the vehicle body member side screw portion. The screw shaft side thread portion of the member may have a configuration (third configuration) having a female screw that can be screwed into the stud bolt.

  According to the third configuration, the vehicle body member includes a vehicle body component plate and a stud bolt that is erected on the vehicle body component plate and forms a vehicle body member side screw portion, and the screw shaft side screw portion is the stud. Since it has the internal thread screwed together with the bolt, it is not necessary to provide a through hole for inserting an external thread in the body member side thread portion. This eliminates the need for drilling the vehicle body member.

  On the other hand, in the method of attaching a resin panel member to a vehicle body member, a vehicle body member side screw portion in which one of an internal thread or a male screw is formed is provided in advance in the vehicle body member, and the vehicle body in the resin panel member A long hole is provided in advance in a portion corresponding to the member-side screw portion, and the screw shaft portion, a large diameter portion that is provided at one end of the screw shaft portion and can be inserted into the long hole, and the large diameter portion And a bolt member having a threaded shaft side threaded portion that can be screwed onto the body member side threaded portion, and the threaded shaft portion has a predetermined diameter relative to the large diameter portion. A screw assembly having a fastening nut member that is screwed and temporarily fixed at intervals is prepared, and the vehicle body member and the resin panel member are aligned by aligning the position of the vehicle body member side screw portion and the elongated hole. In a stacked state, the screw assembly bolt The screw shaft side screw portion of the member is screwed into the vehicle body member side screw portion through the long hole from the resin panel member side until the large diameter portion of the bolt member is pressed against the vehicle body member, and the nut member and resin A configuration in which heat is applied to the resin panel member in a state where a gap is generated between the panel member and the panel member, and then the vehicle body member and the resin panel member are fixed by the nut member ( (4th structure) may be sufficient.

  According to the fourth configuration, the same effects as described in the first configuration can be obtained when the resin panel member is attached to the vehicle body member. Hereinafter, it will be described in more detail through reference embodiments.

<< Reference Embodiment for the Present Invention >>
FIG. 24 is an overall perspective view of the vehicle 101 according to the first reference embodiment. Of the various panel members constituting the outer surface of the vehicle 101, the fender panels 102 and 102 constituting the left and right front sides (only one side is shown in FIG. 24, but the other side is shown. Is formed using resin instead of metal for the purpose of reducing the weight of the vehicle body.

  As shown in FIG. 25, a flange portion 102f extending in the longitudinal direction of the vehicle body is provided on the upper portion of the fender panel 102, and a part of the vehicle body is formed below the flange portion 102f. A metal wheel apron reinforcement 103 extending in the direction is disposed. The flange portion 102f is placed on the wheel apron reinforcement 103 and fixed by two front and rear mounting portions 110 and 120 (hereinafter referred to as a front side mounting portion 110 and a rear side mounting portion 120). In some cases, it may be fixed with three or more attachment parts (5 places, etc.).

  Further, as shown in the drawing, a slide fixing portion may be provided on the bumper mounting portion 200. Since the fender panel 102 is supported from below by the bumper mounting portion 200, it is also effective for suppressing thermal sag of the fender panel 102 due to heat of coating drying.

  As shown in FIG. 26, in the rear attachment portion 120, the wheel apron reinforcement 103 and the flange portion 102f of the fender panel 102 are provided with circular bolt insertion holes 103a and 102a, respectively, and a wheel apron. A weld nut 121 is welded to the lower surface of the reinforcement 103 (the surface on the side opposite to the fender panel 102) coaxially with the bolt insertion hole 103a, and the bolt 122 is attached from the flange portion 102f side of the fender panel 102. The rear part of the flange part 102f of the fender panel 102 is fixed to the wheel apron reinforcement 103 by screwing into the weld nut 121 through the bolt insertion holes 102a and 103a.

  On the other hand, in the front mounting portion 110, the wheel apron reinforcement 103 is provided with a circular bolt insertion hole 103b, and the flange portion 102f of the fender panel 102 has a rectangular length extending in the longitudinal direction of the vehicle body. A hole 102b is provided. Further, a weld nut 111 is welded to the lower surface of the wheel apron reinforcement 103 so that the front portion of the flange portion 102f of the fender panel 102 is fixed to the wheel apron reinforcement 103 using a screw assembly 112. It has become.

  Here, the longitudinal direction of the long hole 102b is set to a direction that allows thermal expansion and contraction. That is, as shown in FIG. 25, the longitudinal direction of the long hole 102b is such that the side end 104a of the hood hood 104, which is an important element for the appearance of the vehicle 101, and the fender panel 102 adjacent to the side end 104a. The distance x in the vehicle width direction from the upper end 102d (top) hardly changes even during thermal expansion / contraction of the fender panel 102, that is, the positional change in the vehicle width direction of the upper end 102d of the fender panel 102 due to thermal expansion. Is set in the longitudinal direction of the vehicle body indicated by arrows F (front) and R (rear) that are orthogonal to this and allow thermal expansion and contraction.

  Further, a step portion 102c having a thickness larger than that of the flange portion 102f of the fender panel 102 is provided in the peripheral portion of the long hole 102b in order to increase the rigidity of the portion.

  A rectangular frame-shaped metal spacer 140 is fitted into the long hole 102b. The outer dimension of the spacer 140 is smaller than the inner dimension of the long hole 102b by a predetermined amount. This is to make it possible to absorb thermal expansion and contraction due to changes in natural air temperature.

  Next, the screw assembly 112 will be described. As shown in FIGS. 27 and 28, the screw assembly 112 is fixed to the whole screw bolt 131 and the middle of the whole screw bolt 131 in the axial direction. A circular nut 132 that can be inserted into the hole 140a (that is, can be inserted into the long hole 102b of the fender panel 102) and has a larger diameter than the full screw bolt 131, and a predetermined distance y (attachment method) to the circular nut 132 And a fastening nut 133 that is screwed and temporarily fixed to the all screw bolt 131.

  Among these, as shown in FIG. 26 and FIG. 27, the all screw bolt 131 has a hexagon hole 131a that can be engaged with a hexagon wrench on one end face.

  Further, the circular nut 132 is fixed to the predetermined position by screwing the circular nut 132 to a predetermined position on the entire screw bolt 131 and then caulking strongly in the radial direction or the axial direction. The diameter of the nut 132 is slightly smaller than the length of the short side (length in the vehicle width direction) of the long hole 140a of the spacer 140. The purpose of this is to make the mounting position of the fender panel 102 relative to the wheel apron reinforcement 103 as accurate as possible in the vehicle width direction while ensuring the mobility as a guide member in the elongated hole 140a of the circular nut 132. . Instead of the circular nut 132, for example, a polygonal nut such as a hexagon or an octagon may be used. In this case, as the polygon nut, it is preferable to use a nut having a diameter that does not cause a large gap in the vehicle width direction between the inner surface of the elongated hole 140a of the spacer 140. Further, the fixation of the circular nut 132 to the screw shaft 131 may be performed by welding instead of caulking or together with caulking.

  The fastening nut 133 is composed of a seated nut having a circular seat portion 133a, and after being screwed to the position where the predetermined interval y is reached with respect to all screw bolts 131, the seat portion 133a is lightly compressed in the radial direction. It has been squeezed. In this caulking, the screw assembly 112 does not move on the shaft at the vibration level when it is transferred to the next process or the like alone or in an assembled state, and if a tool or the like is used, the fastening nut 133 is rotated. What is necessary is just to be able to be restarted. In the event that the fastening nut 133 moves to the anti-circular nut 132 side, the end of the full-screw bolt 131 on the anti-circular nut 132 side so that the fastening nut 133 does not fall off the full-screw bolt 131. A snap ring, a burring pin, or the like may be provided.

  Next, attachment and painting of the fender panel 102 to the wheel apron reinforcement 103 will be described.

  First, the flange portion 102f of the fender panel 102 is placed on the wheel apron reinforcement 103 from above, and the positions of the bolt insertion holes 102a and 103a of the rear attachment portion 120, and the bolt insertion holes 102b of the front attachment portion 110, The positions of the long holes 103b are adjusted.

  Next, the rear mounting portion 120 is fixed. That is, the bolt 122 is inserted from above into the bolt insertion holes 102 a and 103 a of the rear attachment portion 120 in the fender panel 102 and the wheel apron reinforcement 103, and the weld nut 111 on the lower surface of the bolt 122 and the wheel apron reinforcement 103 is provided. And the fender panel 102 is fixed to the wheel apron reinforcement 103.

  Next, work is performed on the front mounting portion 110. That is, first, as shown in FIG. 29, the spacer 140 is fitted into the long hole 102b of the flange portion 102f of the fender panel 102. As shown in FIG. 31, the spacer 140 has a thickness h1 (height) such that when the circular nut 132 of the screw assembly 112 is pressed against the wheel apron reinforcement 103, the fastening nut 133 The thickness h2 of the stepped portion 102c of the fender panel 102 is set to be larger than the thickness h2 of the stepped portion 102c of the fender panel 102 so that the upper end of the stepped portion 102c of the fender panel 102 is fitted into the long hole 102b. It protrudes upward from the upper surface.

  Next, the entire screw bolt 131 of the screw assembly 112 is inserted into the elongated hole 102b of the fender panel 102 and the bolt insertion hole 103b of the wheel apron reinforcement 103 from above (from the fender panel 102 side), and all of the bolt bolts 131 are inserted using a hexagon wrench. The screw bolt 131 is rotated, that is, the entire screw assembly 112 is rotated around the entire screw bolt 131, and the entire screw bolt 131 is screwed into the weld nut 111 on the lower surface of the wheel apron reinforcement 103. This is continued until the circular nut 132 of the screw assembly 112 is pressed against the wheel apron reinforcement 103.

  In this pressed state, the fastening nut 133 and the circular nut 132 are formed so that a gap z is formed between the fastening nut 133 and the stepped portion 102c of the fender panel 102 as shown in FIGS. The predetermined interval y is set.

  Next, the entire vehicle body to which the fender panel 102 is attached is moved along the production line to the painting area. In this case, in this embodiment, the circular nut 132 of the screw assembly 112 is pressed against the wheel apron reinforcement 103 as described above, and the entire screw assembly 112 is firmly attached to the wheel apron reinforcement 103. In addition, since the fastening nut 133 is temporarily fixed to the entire screw bolt 131, vibration or the like is generated when the fender panel 102 is attached to the wheel apron reinforcement 103. In addition, the screw assembly 112 itself and the fastening nut 133 are prevented from falling off.

  Then, in the painting area, a painting operation including spraying, baking, drying, cooling, and the like of the paint on the entire vehicle body including the fender panel 102 is performed. Note that the baking temperature at this time is set to a temperature (for example, about 180 ° C.) higher than the temperature (for example, about 120 ° C.) when the fender panel 102 is used alone. This is to ensure that the paint is baked onto other metal panels or the like.

  In this case, as described above, since the fender panel 102 is made of resin during the painting operation, it expands more than the metal wheel apron reinforcement 103 during baking and contracts during subsequent cooling. In this embodiment, however, a gap z exists between the fastening nut 133 and the fender panel 102 in the front mounting portion 110, that is, the fender panel 102 and the wheel apron reinforcement. Since the hole on the fender panel 102 side through which the screw assembly 112 is inserted is a long hole, when the fender panel 102 expands greatly during the baking of the painting work, The front side of the fender panel 102 is a long hole 14 provided in the front part. The moving direction F with respect to the wheel apron reinforcement 103 to the rear mounting portion 120 as the reference position as shown in phantom while being guided by the fitted circular nut 132 to a. On the other hand, when the fender panel 102 contracts during subsequent cooling, the front side of the fender panel 102 moves in the R direction with respect to the wheel apron reinforcement 103. That is, large expansion and contraction of the fender panel 102 during the painting operation is allowed, and as a result, deformation such as bending of the fender panel 102 and residual internal stress are prevented.

  Then, after completion of the painting operation, as shown in FIGS. 30 and 31, the fastening nut 133 is tightened to the final state to fix the fender panel 102 to the wheel apron reinforcement 103. In this case, in the present embodiment, as described above, the metal spacer 140 is fitted inside the elongated hole 102b of the fender panel 102, and the thickness (height) h1 of the spacer 140 is Since the thickness n2 of the stepped portion 102c of the fender panel 102 is larger than the thickness h2 of the fender panel 102 in a range where the fastening nut 133 does not contact the spacer 140 at the time of the pressure contact, when the fastening nut 133 is tightened After the nut 133 comes into contact with the upper end of the spacer 140, the spacer 140 is pressed by the nut 133. Therefore, an excessive tightening force is not applied to the periphery of the elongated hole 102b (the stepped portion 102c and the like) of the fender panel 102, and damage to the fender panel 102 is prevented. In the drawing, in order to show that h1 and h2 are different, the difference is exaggerated. However, in actuality, there is no backlash, and the fender panel 102 is not in contact with the wheel apron reinforcement 103. It may be a difference that can be slid.

  In addition, the expansion amount and the shrinkage amount of the resin may not be equal due to the thermal history. If the fender panel 102 and the wheel apron reinforcement 103 are completely fastened as in the prior art, the expansion amount However, in this embodiment, after the completion of the painting operation, the fender panel 102 is finally fixed to the wheel apron reinforcement 103. So there is no fear of these.

  In addition, since a gap is formed between the spacer 140 and the elongated hole 102b of the fender panel 102 in the longitudinal direction of the vehicle body so as to absorb expansion and contraction of a natural temperature change degree, the fender panel 102 has a wheel apron reinforcement. Even if expansion and contraction due to natural temperature change occurs after being attached to the ment 103, the expansion and contraction can be satisfactorily absorbed.

  Next, a second reference embodiment will be described. In addition, it demonstrates centering on the structure of the front side attachment part in which the difference with 1st reference embodiment exists, and the basic structure of the vehicle 101, fender panel 102, wheel apron rain | train which are substantially the same as 1st reference embodiment. A description of the configuration of the reinforcement 103, the rear mounting portion 120, and the spacer 140 will be omitted. In the description, the same reference numerals are used when referring to these items. The same applies to a third reference embodiment described later.

  That is, as shown in FIG. 32, in the front mounting portion 150 according to the second reference embodiment, the weld nut 151 that constitutes the vehicle body member side screw portion faces the fender panel 102 in the wheel apron reinforcement 103. The cylindrical portion 151 a on the bottom surface is fitted into the bolt insertion hole 103 b of the wheel apron reinforcement 103 and welded thereto.

  Further, the screw assembly 152 has a full screw bolt 161, a circular nut 162 screwed to the full screw bolt 161, and a predetermined interval y ′ with respect to the circular nut 162, as in the first reference embodiment. And a fastening nut 163 that is screwed. Note that these nuts 162 and 163 are subjected to the same caulking process as in the first embodiment. Further, the circular nut 162 is thinned so that the weld nut 151 protrudes from the surface of the vehicle body constituting panel 103 facing the fender panel 102 toward the fender panel 102.

  Further, as shown in FIG. 33, the predetermined interval y ′ between the fastening nut 163 and the circular nut 162 is set so that the weld nut 151 of the wheel apron reinforcement 103 is placed in the long hole 140a of the spacer 140 (that is, the fender panel 102). In the state where the wheel apron reinforcement 103 and the fender panel 102 are overlapped with each other, the entire screw bolt 161 of the screw assembly 152 is placed until the circular nut 162 is pressed against the weld nut 151. When screwed into the weld nut 151 of the wheel apron reinforcement 103 from the fender panel 102 side through the long hole 140a of the spacer 140 (that is, through the long hole 102b of the fender panel 102), the fastening nut 163 and the fender panel It is set to a distance gap z 'is formed between the 02 of the stepped portion 102c.

  Therefore, even in the second reference embodiment, as in the first reference embodiment, even if vibration or the like occurs during movement with the fender panel 102 attached to the wheel apron reinforcement 103, the entire screw bolt 161 or The fastening nut 163 and the like are prevented from falling off, and the fender panel 102 moves in the F and R directions as indicated by phantom lines with respect to the wheel apron reinforcement 103. Expansion and contraction will be allowed.

  Next, after the completion of painting, the fender panel 102 is fixed to the wheel apron reinforcement 103 by tightening the fastening nut 163. In this embodiment as well, a gap is formed between the spacer 140 and the elongated hole 102b of the fender panel 102 in the longitudinal direction of the vehicle body so as to be able to absorb the expansion and contraction of the natural temperature change. The expansion and contraction due to the change can be absorbed well.

  In particular, according to the second reference embodiment, the weld nut 151 protrudes into the long hole 102b (the long hole 140a of the spacer 140) of the fender panel 102. Therefore, the weld nut 151 also has the fender panel. It can be used as a guide member for guiding the movement of 102.

  Next, a third reference embodiment will be described. That is, as shown in FIG. 34, in the front mounting portion 170 according to the third reference embodiment, the wheel apron reinforcement 103 is not provided with a bolt insertion hole, and instead of this, the wheel apron A stud bolt 171 is welded and erected on the surface of the reinforcement 103 facing the fender panel 102.

  The screw assembly 172 includes a full screw bolt 181, a circular member 182 fixed to one end of the full screw bolt 181, and a fastening member screwed into the circular member 182 at a predetermined interval y ″. In addition, the seat 183a of the fastening nut 183 is subjected to the same caulking process as in the first reference embodiment, and the surface of the circular member 182 on the anti-total screw bolt 181 side is provided. A female screw portion 182a that can be screwed onto the stat bolt 171 is provided.

  The predetermined distance y ″ between the fastening nut 183 and the circular nut 182 is set so that the stud bolt 171 of the wheel apron reinforcement 103 is inserted into the long hole 140a of the spacer 140 (that is, the fender panel 102) as shown in FIG. In the state where the wheel apron reinforcement 103 and the fender panel 102 are overlapped with each other, the circular member 182 of the circular member 182 of the screw assembly 172 and the circular member 182 of the wheel apron reinforcement The gap z ″ is set to be generated between the fastening nut 183 and the fender panel 102 when screwed into the stud bolt 171 of the wheel apron reinforcement 103 until it is pressed against the ment 103.

  Therefore, in the third reference embodiment, as in the first reference embodiment, even if vibration or the like occurs during movement with the fender panel 102 attached to the wheel apron reinforcement 103, The fastening nut 183 and the like are prevented from falling off, and the fender panel 102 moves in the F and R directions as indicated by phantom lines with respect to the wheel apron reinforcement 103. Expansion and contraction will be allowed.

  Then, after the painting is completed, the fender panel 102 is fixed to the wheel apron reinforcement 103 by tightening the fastening nut 183. Also in this embodiment, a gap that can absorb expansion and contraction of the natural air temperature change is provided in the longitudinal direction of the vehicle body between the spacer 140 and the elongated hole 102b of the fender panel 102. The expansion and contraction due to can be absorbed well.

  In particular, according to the third reference embodiment, it is not necessary to provide a bolt insertion hole in the wheel apron reinforcement 103 in the front mounting portion 170, so that the labor of drilling can be saved.

  In the first to third reference embodiments, the bolt member of the screw assembly is constituted by two members of all screw bolts 131, 161, 181 and circular nuts 132, 162 and a circular member 182, but FIG. As shown, a bolt member 190 having a screw shaft portion 191, a large diameter portion 192, and a screw shaft side screw portion 193 may be formed by cutting out from one member.

  In each reference embodiment, the case where the resin panel member attached to the vehicle body member is the fender panel 102 has been described. However, the present invention can be applied to the outer panel of the side door 105 shown in FIG. In the case of the side door 105, the direction of the long hole is determined by the distance between the rear end of the fender panel 102 and the front end of the outer panel of the door 105, which is an important element in the appearance of the vehicle 101. A vehicle that can allow thermal expansion and contraction so that it hardly changes even when the outer panel 105 of the outer panel 105 is thermally expanded and contracted, that is, a change in the position of the front end of the outer panel of the door 105 in the longitudinal direction of the vehicle due to thermal expansion is restricted. What is necessary is just to set to the width direction.

  Further, the present invention can be widely applied not only to the outer panel that constitutes the outer surface of the vehicle, but also to the inner panel that constitutes the inner surface, and other resin panels that are subjected to high-temperature work such as painting after being attached to a vehicle body member.

  The present invention can be widely applied to a mounting structure and a mounting method of a resin panel member to a vehicle body member.

1 is a perspective view of a vehicle according to a best embodiment of the present invention. It is an expansion perspective view which shows the attachment relationship of the fender panel and apron frame of the said vehicle. It is an exploded sectional view before attachment of a slide part. (A) of a spacer member is a top view, (b) is a bottom view. FIG. 4 is an exploded cross-sectional view of the slide portion, and shows a state after the spacer member is fitted into the long hole of the fender panel and the weld nut is joined to the attachment hole of the apron frame, after FIG. 3. FIG. 6 is a cross-sectional view of the slide portion, and shows a state where the fender panel and the apron frame are overlapped with each other and the screw portion of the fastening member is started to be screwed into the weld nut next to FIG. 5. FIG. 7 is a cross-sectional view of the slide portion, and shows a state where the threaded portion of the fastening member is screwed into the weld nut until the large-diameter portion of the fastening member is pressed against the weld nut after FIG. 6. It is sectional drawing of a slide part, Comprising: After FIG. 7, the state by which the coating film was formed on the surface of a workpiece | work is shown. FIG. 9 is a cross-sectional view of the slide portion, and shows a state after the nut member for fastening is passed through the screw shaft portion of the fastening member and the fender panel and the apron frame are fixed by the nut member after FIG. 8. It is sectional drawing of the slide part corresponding to FIG. 9 for showing another example of a spacer member. It is sectional drawing of the slide part corresponding to FIG. 9 for showing the example which does not use a spacer member. It is an exploded sectional view before attachment of a complete fastening part. It is a bottom view of a spacer member. FIG. 13 is an exploded cross-sectional view of a complete fastening portion, and shows a state where a weld nut is joined to an apron frame mounting hole and a fender panel and an apron frame are superposed next to FIG. 12. It is sectional drawing of a complete fastening part, Comprising: FIG. 14 shows the state by which the coating film was formed on the surface of a workpiece | work. FIG. 16 is a cross-sectional view of the complete fastening portion, and shows a state after the spacer member is fitted in the round hole of the fender panel and the screw portion of the fastening member is started to be screwed into the weld nut after FIG. 15. FIG. 17 is a cross-sectional view of a complete fastening portion, and shows a state where a fender panel and an apron frame are fixed by a fastening member next to FIG. 16. It is a longitudinal cross-sectional view of a fender panel and an apron frame for showing a structure and an effect | action of a thermal contraction control part. It is a longitudinal cross-sectional view of a fender panel and an apron frame for showing another structure and effect | action of a thermal contraction control part. It is a top view which shows the case where the operation | work which puts a fender panel on an apron frame in piles is favorable, (a) is the state before superimposing, (b) is the state after superimposing, (c) is fastening The state which screwed the member in the weld nut through the long hole and the spacer member is shown. It is a top view which shows the case where it is a problem of the operation | work which puts a fender panel on an apron frame, Comprising: (a) is the state before superimposing, (b) shows the state after superimposing. It is explanatory drawing in the case of using a clip nut, Comprising: It is an exploded sectional view of the slide part corresponding to FIG. It is explanatory drawing in the case of using a clip nut, Comprising: It is sectional drawing of the slide part corresponding to FIG. 1 is a perspective view of a vehicle according to an embodiment that serves as a reference for the present invention. It is an expansion perspective view of the fender part in FIG. It is an expansion perspective view of the state which decomposed | disassembled the part shown by the arrow A of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is sectional drawing by the same cross section as FIG. 28 in the state which screwed all the screw bolts in the weld nut until the circular nut was press-contacted to the wheel apron reinforcement. It is sectional drawing by the same cross section as FIG. 28 in the state which fastened the nut for fastening. It is sectional drawing by the same cross section as FIG. 27 in the same state. FIG. 29 is a diagram corresponding to FIG. 28 according to a second reference embodiment. FIG. 30 is a view corresponding to FIG. 29. FIG. 29 is a diagram corresponding to FIG. 28 according to a third reference embodiment. FIG. 30 is a view corresponding to FIG. 29. It is a side view of the other example of the bolt member of a screw assembly.

Explanation of symbols

1 Vehicle 2 Fender (resin panel member)
6 Apron frame (body parts)
21 Weld nut (screw part on the vehicle body)
22 Long hole 23 Fastening member 23a Screw shaft portion 23b Large diameter portion 23c Screw portion 23d Second large diameter portion 24 Spacer member 25 Nut member 40 Fastening shrinkage restricting portion

Claims (9)

A structure for mounting a resin panel member to a vehicle body member,
The vehicle body member is provided with a vehicle body member side thread portion in which one of a female screw or a male screw is formed,
In the part corresponding to the body member side thread portion in the panel member, a long hole is formed along a direction allowing thermal deformation of the panel member,
And a screw shaft portion, a large-diameter portion that is provided at one end of the screw shaft portion and can be inserted into the elongated hole, and is provided on an end surface of the large-diameter portion on the side opposite to the screw shaft portion. A mounting structure for a resin panel member for a vehicle, characterized in that a fastening member having a threaded portion that can be screwed to is used. The vehicle resin panel member mounting structure according to claim 1,
The mounting structure for a resin panel member for a vehicle, wherein the screw shaft portion of the fastening member is provided with a second large diameter portion having a diameter larger than that of the large diameter portion. A mounting structure for a resin panel member for a vehicle according to claim 2,
When the screw portion of the fastening member is screwed into the vehicle body member side screw portion until the large diameter portion is pressed against the vehicle body member, a gap is generated between the second large diameter portion and the resin panel member. It is comprised as follows, The attachment structure of the resin-made panel members for vehicles characterized by the above-mentioned. A mounting structure for a resin panel member for a vehicle according to claim 2 or 3,
In the peripheral part of the long hole, there is a long hole into which the large diameter part and the second large diameter part of the fastening member can be respectively inserted, and a long hole into which the large diameter part can be inserted is formed. The thickness of the resin panel member is set to be substantially the same as the thickness of the portion where the long hole is formed, and a frame-like spacer member having a compressive creep strength higher than that of the resin panel member is inserted. A mounting structure of a resin-made panel member for vehicles, which is characterized. A mounting structure for a resin panel member for a vehicle according to any one of claims 1 to 4,
A mounting structure for a resin panel member for a vehicle, wherein a heat shrinkage restricting portion for restricting heat shrinkage of a predetermined amount or more of the resin panel member is provided. The vehicle resin panel member mounting structure according to claim 5,
The heat shrinkage restricting portion is constituted by a contact between a fastening member screwed to the vehicle body member side screw portion and one end portion of a long hole of the resin panel member. Panel member mounting structure. It is a method of attaching a fat and oil panel member to a vehicle body member,
The vehicle body member is preliminarily provided with a vehicle body member side screw portion in which one of a female screw or a male screw is formed, and thermal deformation of the panel member is allowed at a portion corresponding to the vehicle body member side screw portion of the resin panel member. A long hole is formed in advance along the direction to
And a screw shaft portion, a large-diameter portion that is provided at one end of the screw shaft portion and can be inserted into the elongated hole, and is provided on an end surface of the large-diameter portion on the side opposite to the screw shaft portion. Preparing a fastening member having a threaded portion that can be screwed to,
In the state where the body member and the resin panel member are overlapped with the position of the body member side threaded portion and the elongated hole, the threaded portion of the fastening member is kept in contact with the body member until the large diameter portion is pressed against the body member. Screwed into the body member side thread,
In this state, perform a predetermined work to apply heat to the resin panel member,
Then, the fastening nut member is passed through the screw shaft portion of the fastening member, and the vehicle body member and the resin panel member are fixed by the nut member. It is a mounting method of the resin panel member for vehicles according to claim 7,
The screw shaft portion of the fastening member is provided with a second large diameter portion having a larger diameter than the large diameter portion,
When the screw portion of the fastening member is screwed into the vehicle body member side screw portion until the large diameter portion is pressed against the vehicle body member, a gap is generated between the second large diameter portion and the resin panel member. The mounting method of the resin panel members for vehicles characterized by these. A method for mounting a resin panel member for a vehicle according to claim 7 or 8,
The method for attaching a resin panel member for a vehicle, wherein the predetermined operation in which heat is applied to the resin panel member is a coating film drying operation after painting.

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